> Javascript file referenced by the following code is
> not retrieved:
> <script type="text/javascript"
> src="/include/js/xtcore.js"></script>

You don't tell us on what page or what starting url or what the log file says
about xtcore.js so we can't help

> I've added in "Scan Rules":
> +*.js
> +*/include/*

The first should do it as would get non-html=checked

> In the HTML file containing these codes, links are
> rewritten with absolute URL:
> <script type="text/javascript"
> src=http://www.foo.com/include/js/xtcore.js</scri
> pt>
Files not downloaded locally must be absolute urls. When I click on that url,
my browser gets nothing.  So most likely the file doe not exist on the
server.

> and for css:
> <link rel="stylesheet" type="text/css"
> media="projection, screen"
> href=http://www.foo.com/include/css/default.css

My browser gets nothing.